Mostly harmless, according to Douglas Adams
There is a rare type of galaxy called a ring galaxy, which has a core of old stars surrounded by a ring of young new stars. The most quintessential example of this is Hoag's Object, discovered in 1950.
Image Credit: NASA, R. Lucas (STScI/AURA)
There is a rare type of galaxy called a ring galaxy, which has a core of old stars surrounded by a ring of young new stars. The most quintessential example of this is Hoag's Object, discovered in 1950.
Image Credit: NASA, R. Lucas (STScI/AURA)